Ink cartridge



FIG. 1 is a front, top and left side perspective view of an ink cartridge showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a front, top and left side perspective view of a second embodiment of an ink cartridge;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a top plan view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a left side view thereof; and,

FIG. 14 is a right side view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an ink cartridge, as shown and described. 